Recent content by MattLogue9

So I generate a pulse say 50% duty 145hz - how would one process the signal? I'll use a ESP32 microcontroller. I could use another LED in separated chamber with same light as a bias. Would a IR LED pick up the red laser well enough to read by its 12bit ADC? - fraid I don't have a tunneled...

Building visibiity sensor... What is best angle to detect water vapor reflection from laser, and refraction? I plan to have two open cylindrical containers painted flat black and put inside each other so the overlap is about 0.5-1" (adj to limit ambient light vs airflow). Laser is cheap red...